Ziggurats are the temple tower with pyramid structure in an elevated type and stands for religious belief in ancient Mesopotamian.
Explanation:
Ziggurats were built in subsequent stages with external stairs and at the top of the temple, building or similar object. They built them to bring the temples closer to heaven, and thus to the gods. This is due to the belief that the gods appeared on earth at the highest point in the country.
Until 2000 B.C., Mud bricks Ziggurats were built in lot of Sumerian cities. Then, later built in the cities of Babylonia and Assyria. The goal is to bring the temple closer to the sky and let the stairs fall off the ground. Mesopotamian believed that these pyramidal temples connect heaven and the earth.